Product Description
Chlortetracycline (trade name Aureomycin, Lederle) is a tetracycline antibiotic, the first tetracycline to be identified. It was discovered in 1945 by Benjamin Minge Duggar working at Lederle Laboratories under the supervision of Yellapragada Subbarow. Duggar identified the antibiotic as the product of an actinomycete he cultured from a soil sample collected from Sanborn Field at the University of Missouri.The organism was named Streptomyces aureofaciens and the isolated drug, Aureomycin, because of their golden color.
Specifications
Chlortetracycline HCl
Yellow powder
The specifications conform with EP6.
Chlortetracycline HCl
Yellow powder
The specifications conform with EP6.
Item Standard Result
Characteristics Yellow powder Conforms
Identification A: Thin-layer chromatography Conforms
B: As description of EP6 Conforms
C: Reaction of Chlorides Conforms
pH 2.3-3.3 2.55
Water 2.0% max 0.47%
Spec. Rotation -235° ~-250° -248°
Sulphated ash 0.5% max 0.15%
Absorbance 460nm: 0.40 max 0.211
Related substances 4-Epichlortetracycline: 4.0% max 1.94%
Total of other impurities: 1.0% max 0.64%
Heavy metals 50ppm max <50ppm
TC@HCl (on dried basis) 8.0% max 4.38%
CTC@HCl (on dried basis) 89.5% min 92.36%
TC@HCl+CTC@HCl (on dried basis) 94.5-102.0% 96.74%
Storage:
Kept in a light-proof, well-colsed, dry and cool place.
Service we can provide:
1. Mixed container, we can mix different items in one container.
2. Quality control, before shipment, free sample for test. After shipment, keep sample for 3 years
3. Prompt shipment with professional documents
4. Packing as your request, with photo before shipment
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